Dynamical overlap simulations using HMC
نویسندگان
چکیده
منابع مشابه
Physics results from dynamical overlap fermion simulations
I summarize the physics results obtained from large-scale dynamical overlap fermion simulations by the JLQCD and TWQCD collaborations. The numerical simulations are performed at a fixed global topological sector; the physics results in the θ -vacuum is reconstructed by correcting the finite volume effect, for which the measurement of the topological susceptibility is crucial. Physics applicatio...
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We present algorithmic improvements to the overlap Hybrid Monte Carlo algorithm, including preconditioning techniques and improvements to the correction step, used when one of the eigen-values of the Kernel operator changes sign, which is now O(∆t 2) exact. c Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
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JLQCD Collaboration: T. Kaneko∗a,b†, S. Aokic, H. Fukayad, S. Hashimotoa,b, K-I. Ishikawae, K. Kanayac, H. Matsufurua, M. Okamotoa, M. Okawae, T. Onogig, A. Ukawa f ,c, N. Yamadaa,b, T. Yoshié f ,c a High Energy Accelerator Research Organization (KEK), Ibaraki 305-0801, Japan b School of High Energy Accelerator Science, The Graduate University for Advanced Studies (Sokendai), Ibaraki 305-0801, ...
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We perform dynamical QCD simulations with nf = 2 overlap fermions by hybrid Monte-Carlo method on 64 to 83 × 16 lattices. We study the problem of topological sector changing. A new method is proposed which works without topological sector changes. We use this new method to determine the topological susceptibility at various quark masses.
متن کاملAlgorithms for dynamical overlap fermions
An overview of the current status of algorithmic approaches to dynamical overlap fermions is given. In particular the issue of changing the topological sector is discussed.
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2005
ISSN: 0920-5632
DOI: 10.1016/j.nuclphysbps.2004.11.200